When you want to show your stupidity, you like to kick all the jams don't you. Radiocarbon dating can date materials up to 50,000 years old. The mutation that allows for lactose digestion by adults of certain populations occurred sometime in the last 10,000 years. I have seen one estimate that placed it at 3-5000 years ago, but I could be remembering wrong. It turns out that lactose digestion by populations in Africa is the result of a different and independent mutation than that found in Europeans. Finally something you are right about. Just because one individual shows lactose intolerance does not mean they all did, but even that small a sample does provide us with a window to peer into the genetics of that population and it is another piece of evidence that fits right in the story of the lactose digestion mutation.<quoted text>
In the first place, radiometric carbon dating is invalid for dates beyond about 3,500 years, because no calibration curves have been calculated.
Second, the mutation resulting in lactose digestion is believed to have occured 52,000 years ago.
Third, the existence of lactose intolerance in an ancient mummy provides no evidence that everyoone during that time period was lactose intolerant.
You keep making the half-assed, inane claims and we keep shooting them down with real evidence. I think when you say you like science, what you are really saying is you like pretty plants and animals. But you know nothing beyond the aesthetics.
Here is the reference to the paper on the origin of lactose digestion in Africa for those actually interested in science.
Tishkoff, Sarah A., Floyd A Reed, Alessia Ranciaro, et. al. 2007. Convergent adaptation of human lactase persistence in Africa and Europe. Nature Genetics. 39(1): 31-40.